Improvement in weans for operating door-bells



I. H. ABELL.

Means for Operating Door-Bells.

No.l5l,-334, Patented May-26,18 74.

AMMmmwemw/m 00.. [lasso/Ms: muons) IRVIN H. ABELL, OF EAST HAMPTON,CONNECTICUT, ASSIGNOR TO THE EAST HAMPTON BELL COMPANY, OF SAME PLACE.

IMPRQVEMENT IN MEANS FOR OPERATING DOOR-BELLS.

Specification forming part of Letters Patent No. 1 5L334, dated May 26,1874; application filed May 2, 1874.

To all whom it may concern:

Be it known that I, IRVIN H. ABELL, of East Hampton, in the county ofMiddlesex and State of Connecticut, have invented a new Improvement inDoor-Bells; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference markedthereon, to be a full, clear, and exact description of the same, andwhich said drawings constitute part of this specification, andrepresent, in-

Figure 1, a view of the mechanism with the base-plate and mechanism in astate of rest the bell removed; and, in Fig. 2, the same, to illustratethe operation.

This invention relates to an improvement in that class of bells whichare specially arranged to be placed upon the inside of the door to besounded by the rotation of a spindle running through the door, butapplicable to other purposes; and the invention consists in combining,with a pivoted hammer, a slot-ted tumbler connected to the hammer-lever,the said slot allowing the hub to turn the connection and throw it pasta central line; then the spring will throw the connection to theopposite extreme of the slot, thereby freeing the lever and allowing thehammer to strike, as more fully hereinafter described.

A is the base or plate by which the bell is secured to the door; B, thepost upon which the bell is secured in the usual manner; C, thehammer-lever hung at a, the hammer I) attached thereto by an arm, E,which has more or less elasticity, so that the momentum of the hammer ingiving the blow will be sufficient to throw the hammer against the bell,and the elasticity of the arm E cause it to fall back slightly from thebell, and thus give a quick stroke, which is necessary to the propersounding of the bell. F is the hub through which the spindle passes tothe other side of the door, so that by turning the spindle the hub willbe turned accordingly. The hub is formed with an arm, G, in which is aslot, H,

and upon the opposite side, or at any convenient point, a spring, L, isconnected to the hub, the tendency of which is to throw the slot of thearm into the line of the lever C, as seen in Fig. 1, and from a pivot,61, on the lever C, a connection, I, extends to the slot H. A spring, N,is arranged to' bear upon the lever C and hold it down to thepositionseen in Fig. 1, which is the place of rest. When the hub F isturned, as from the position in Fig. 1 to that denoted by broken linesin Fig. 2, the stud on the connection I, which lies in the slot H, restsuntil the end of the slot strikes the stud; then the stud is carrieddown by the slot into the position seen in Fig. 2, and so on, until thestud in the slot passes a line drawn. from the pivot d to the center ofthe hub; then the connection forced by the spring N i'lies quicklythrough the slot and allows the lever C to fall and the hammer tostrike. The spindle then left free, the spring L will return the hub andthe slot H will carry the I connection back again, raising the lever C,and so soon as the connection passes the line between the pivot d andthe center of the hub it will fly in the opposite direction-that is, toits first position. This mechanism is adapted to use as a pullbell bysimplyattaching a wire key to the hub, the pulley of which will cause acorresponding turn of the hub to operate the same as when turned by thespindle. The spring L is not essential in the use of the spindle exceptwhen it is required to positively return the spindle. This is desirablebut not essential.

I claim as my invention- The combination of the hammer-lever C, the hubF, with the slot H, and the connection 1, from the arm E to the saidslot H, and the spring N, substantially as described.

IRVIN H. ABELL.

Witnesses:

GEORGE W. GOUGH, LUOIUS H. GoFF.

